Roland JC-120UT, JT Jazz Chorus (2000) Service Manual 电路图.pdf

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1、Sep. 2000JC-120UT/JT Copyright 2000 ROLAND CORPORATION All rights reserved. No part of this publication may be reproduced in any form without the written permisson of ROLAND CORPORATION. Second Edition 1 TABEL OF CONTENTSPage SPECIFICATIONS.1 LOCATION OF CONTROLS.2 HOW TO DISTINGUISH BETWEEN .2 OLD

2、TYPE AND NEW TYPE EXPLODED VIEW .3 PARTS LIST.4, 5 PM BOARD ASSY CIRCUIT BOARD.6 PM BOARD ASSY CIRCUIT DIAGRAM.7 PA BOARD ASSY CIRCUIT BOARD.8 PA BOARD ASSY CIRCUIT DIAGRAM.9 SPECIFICATIONS Rated Power Output . . . . . . . . . : 120 W ( 60 W/ 8 ohm + 60 W/ 8 ohm ) Nominal Input Level. . . . . . . .

3、. . : -30 dB ( 0 dB = 0.775 Vrms ) Input Impedance . . . . . . . . . . . . : 680 kohm Speakers . . . . . . . . . . . . . . . . . . : SPEAKER 12-4782 ( G1208F01 ) (JC-120UT old type) 30-103D-3 (JC-120JT*, JC-120UT New type) Controls . . . . . . . . . . . . . . . . . . . : CH1 : BRI(Bright) Switch, VO

4、LUME Knob, TREBLE Control Knob, MIDDLE Control Knob, BASS Control Knob : CH2 : BRI(Bright) Switch, VOLUME Knob, TREBLE Control Knob, MIDDLE Control Knob, BASS Control Knob, DISTORTION Knob, REVERB Knob, Vibrato SPEED Knob, Vibrato DEPTH Knob, VIB/OFF/CHORUS Switch, CH2 EFFECT LOOP Switch(SERISE/PARA

5、LLEL), CH2 EFFECT LOOP LEVEL Switch(-20dBm/+4dBm) : POWER Switch Connectors. . . . . . . . . . . . . . . . . : CH1 INPUT Jacks(HIGH, LOW), CH2 INPUT Jacks(HIGH, LOW), FOOT SWITCH Jacks(CHORUS/VIBRATO, REVERB, DISTORTION), CH2 EFFECT LOOP SEND Jack, CH2 EFFECT LOOP RETURN Jacks(L/MONO, R) LINE OUT Ja

6、cks(L/MONO, R) Power Supply. . . . . . . . . . . . . . . : AC 100V, 117V, 230V, 240V Power Consumption. . . . . . . . . . : 77W (AC 100V) 110W (AC 117V, 230V, 240V) Dimensions . . . . . . . . . . . . . . . . : 760 (W) x 280 (D) x 622 (H) mm 29-15/16 (W) x 11-1/16 (D) x 24-1/2 (H) inches (includes ca

7、sters) Weight . . . . . . . . . . . . . . . . . . . .: 31.2 kg/ 68 lbs 13 oz (JC-120UT) : 28.0 kg/ 61 lbs 12 oz (JC-120JT) Accessories . . . . . . . . . . . . . . . .: Owners Manual English (17055085) Japanese (17055084) Caster x 4 (00677923) Options . . . . . . . . . . . . . . . . . . . .: Footswit

8、ch FS-5L (BOSS) * NOTE: JC-120JT is sold in Japanese market only. 17059880Printed in Japan (A000) (CR) RadioFans.CN 收音机爱 好者资料库 2 Sep. 2000JC-120UT/JT LOCATION OF CONTROLSHOW TO DISTINGUISH BETWEEN OLD TYPE AND NEW TYPE 1. Speaker Label. *1 2. Speaker CAP *2 3. Name plate *3 PARTS No.PART No.PART NAM

9、E 22510402BADGE G.AMP 61 22310207HANDLE H-40 + ESCHUTCHEON G2817115CHASSIS 00677890CABINET ASSY TE000027CABINET ASSY F2247701LED L-608 RED 13129160AC PUSH SWITCH SDDLB1-B-D-2 TV-5 5A/250V 22495565F S-BUTTON MX BLK 00122390ROTARY SWITCH SRBM23N-F15-16 13289217ROTARY POT. RK09L1120 100KB 13289235ROTAR

10、Y POT. RK09L1120 100KA 13289229ROTARY POT. RK09L1120 10KB 00122312ROTARY POT. RK0971111 10KC 00122301ROTARY POT. RK09L1120 250KA 00122290ROTARY POT. RK09L1120 250KB 00122289ROTARY POT. RK09L1120 1MB 22485314JC-KNOB 01782623SWITCH SPUP128100 00125612U S-KEY MX1H DCG/WHT 13449149JACK YKB21-5011 221507

11、5600JACK NUT 13449290JACK YKB21-5231 2215075600JACK NUT 22340202PROTECTION CORNER 12359104RUBBER FOOT 17055038RUBBER FOOT LARGE BLACK 00677923CASTER 3020-11-SR + SOCKET (HARD 1/2) 13159178SLIDE SWITCH SSSU12584A 13159169SLIDE SWITCH SSSU14 12MM 13449261JACK HLJ4306-01-3070 00677912SPEAKER 12-4782 (G

12、1208F01) 22410204SPEAKER 30-103D-3/4 80HM 17055105SCREW #10-32x1 OVAL HEAD BZC PHILLIPS MACHINE (SCREW 00040) TE910013SCREW M5x30 OVAL MACHINE BC 17055071SCREW #10 x1/2 INCH PHP SHEFT METAL ZU TE930013SCREW 4x20 TRUSS TAPPING AI BC 40010601ORIGINAL TRUSS MACHINE SCREW M5x35 BZC (fix CHASSIS to CABIN

13、ET ASSY 10pcs) 17055108SCREW #8x3/4 TRUSS HEAD WOOD (SCREW 00007) TE930013SCREW 4x20 TRUSS TAPPING AI (No numbers in figure) 170550408/32 LOCKING NUT (KEP NUT) (fix SPEAKER to CABINET ASSY ) 40011767FLANGE NUT M4 ZC 00677901REAR BOARD TE010001REAR BOARD 40232001SCREW #10-32x11/4 (INCH) (fix REAR BOA

14、RD to CABINET ASSY) 40010689TRUSS TAPPING A 4x25 BZC 40231967SPEAKER LABEL for 12 inch SPEAKER 40126301SPEAKER LABEL 1 2 3 4UNU J 5 6 7 8 9 10 11 12 13 14 7 14 15 16 17 18 19 J UNU 20 21 22 23 25 U JNU AUNU J BUNU J C DUNU J UNU J UNU J UNU J U J RadioFans.CN 收音机爱 好者资料库 3 Sep. 2000JC-120UT/JT EXPLOD

15、ED VIEW PARTS No.PART No.PART NAME G2817115CHASSIS G2467407HEATSINK G245713501TRANSFORMER 100V/117V G245713601TRANSFORMER 230V/240V G3497123AC CORD VCTF 100V G349712301 G349712401AC CORD SJT 117V G349712402 G3497125AC CORD SY010 230V G349712501 13499111AC CORD 230VE G349712801 G3497126FC-305 240VA G

16、349712601 22495565F S-BUTTON MX BLK F2247701LED L-608 RED 22485314JC-KNOB 2215075600JACK NUT 00125612U S-KEY MX1H DCG/WHT 12369410RTCORD HOLDER 1702B F2257201BARRIER (117V ONLY) 0112638901230V/240V PA BOARD ASSY NOTE : PA BOARD ASSY includes the following PCBs. CH1 BOARD ASSY EFF BOARD ASSY SW BOARD

17、 ASSY 0112639001PM BOARD ASSY NOTE : PM BOARD ASSY includes the followoing PCBs. CH1 INPUT BOARD ASSY CH2 INPUT BOARD ASSY CH2 BOARD ASSY MAIN AMP BOARD ASSY JK BOARD ASSY DI BOARD ASSY H2369411SPACER SUPPORTS LCBS-25 SCREWS No.PART No.PART NAME 17048651VR ACCESSORY WASHER M7 40128923VR ACCESSORY NU

18、T M7 17048631VR ACCESSORY WASHER M9 17048630VR ACCESSORY NUT M9 40011889EXT TOOTH WASHER M4 ZC 40011767FLANGE NUT M4 ZC 40010345BINDING MACHINE SCREW 4x10 BZC 40230023SPRING WASHER M4 ZC 40012989PAN MACHINE SCREW W/SW+PW M3x20 BZC 40011756FLANGE NUT M3 ZC H4019100CFWIRING HARNESS 14 40129889NUT M4 Z

19、C *LED ACCESSORY NUT M8 *LED ACCESSORY WASHER M8 40012945PAN MACHINE SCREW W/SW+PW M3x6 BZC (117V ONLY) 40010423BINDING MACHINE SCREW W/INT TOOTH WASHER M3x8 BZC G2157504STANDOFF M3 L70 40010323BINDING MACHINE SCREW 4x6 BZC 40012967PAN MACHINE SCREW W/SW+PW M3x10 BZC 40010212BINDING MACHINE SCREW 3x

20、15 ZC 40011801SPRING WASHER M3 ZC AC CORD CHASSIS EARTH 100V: NONE 117V: AC CORD EARTH 230V/240V: G3467128 WIRING HARNESS15 1 2 3 4 5 6 7 8 9 10 11 12 13 14 a b c d e f g h i j k l m n o p q r s t u v RadioFans.CN 收音机爱 好者资料库 4 Sep. 2000JC-120UT/JT PARTS LIST CASING 00677890CABINET ASSY TE000027CABIN

21、ET ASSY NOTE:Replacement CABINET ASSY includes the following parts 22310207HANDLE H-40 + ESCUTCHEON 12359104RUBBER FOOT MP-600 17055038RUBBER FOOT LARGE BLACK 22340202PROTECTION CORNER 22510402BADGE G.AMP 61 00677923CASTER 3020-11-SR TE990062DECORATION RIVET TE990062 00677901REAR BOARD ASSY TE010001

22、REAR BOARD ASSY CHASSIS #G2817115CHASSIS #G2467407HEATSINK KNOB, BUTTON 22485314JC-KNOB 00125612U S-KEY MX1H DCG/WHT 22495565F S-BUTTON MX BLK SWITCH 13129160SDDLB1-B-D-2 TV-5 5A/250VAC PUSH SWITCHSW3 on SWB 01782623SPUP12800PUSH SWITCH SW2 on CH1 00122390SRBM23N-F15-16ROTARY SWITCH SW3 on EFB 13159

23、178SSSU12584ASLIDE SWITCH SW2 on JKB 13159169SSSU14 12MMSLIDE SWITCH SW3 on JKB JACK,SOCKET 13449261HLJ4306-01-3070JACK JK9 on JKB 13449149YKB21-5011JACK JK1,JK2 on CI1 JK3,JK4 on CI2 13449290YKB21-5231JACK JK5.JK6,JK7,JK8JK10, JK11,JK12 on JKB SPEAKER 00677912SPEAKER 12-4782 (G1208F01) 22410204SPEA

24、KER 30-103D-3 80HM 40231967SPEAKER LABEL for 12 inch SPEAKER 40126301LABEL SPEAKER 17055160LABEL SPEAKER PCB ASSY #0112639000 PM BOARD ASSY 0112639001 PM BOARD ASSY NOTE1:Replacement PM BOARD ASSY includes the following PCB CH1 INPUT BOARD ASSY/ CH2 INPUT BOARD ASSY CH2 BOARD ASSY/ MAIN AMP BOARD AS

25、SY JK BOARD ASSY/ DI BOARD ASSY #0112638900 230V/240V PA BOARD ASSY 0112638901 230V/240V PA BOARD ASSY NOTE2: Replacement PA BOARD ASSY includes the following PCB. CH1 BOARD ASSY EFF BOARD ASSY SWITCH BOARD ASSY NOTE3:Replacement PA BOARD ASSY is 230V/240V version only. 230V/240V version differs fro

26、m 100V/117V version only fuse system. When using MAIN AMP BOARD ASSY for 100V/117V version, replace fuse. (refer to TABLE A) TABLE A 100V/117VFUSE 5x20 SB 4A/125V(12559444) 230V/240VFUSE 5ST 2.5A/250V (F2559105) IC 15189251M5218APIC OP.AMPIC1,IC2 on EFB 15219205MN3007IC BBDIC3 on EFB 15169504MN3101I

27、C BIPOLERIC4 on EFB TRANSISTOR 151191112SA970GRTRANSISTORQ15,Q16,Q23,Q24 on MAB 151191132SA1015GRTRANSISTORQ12,Q20,Q32,Q33 on MAB Q42 on JKB 001222452SA1671POWER TRANSISTORQ34,Q36 on MAB 151196152SB647CTRANSISTORQ6 on EFB 151196042SB649ACTRANSISTORQ11,Q19 on MAB 151291142SC1815GRTRANSISTORQ2 on CH1

28、Q5,Q9,Q10,Q11 on EFB Q3 on CH2 Q9,Q14,Q21 on MAB Q46,Q47,Q48 on JKB 151294332SC2229OTRANSISTORQ13,Q22 on MAB 151291522SC2878A/BTRANSISTORQ44,Q45 on JKB 001222562SC4386POWER TRANSISTORQ35,Q37 on MAB 151296022SD667CTRANSISTORQ7 on EFB 151296042SD669ACTRANSISTORQ10,Q18 on MAB 151298452SD1763A-DTRANSIST

29、ORQ7,Q8 on MAB 151391232SK184GRFETQ1,Q3 on CH1 Q4,Q8 on EFB Q1,Q2,Q5,Q6 on CH2 Q26,Q27,Q30,Q31 on MAB Q38,Q39,Q40,Q43 on JKB 151391382SK381EFETQ4 on CH2 Q17,Q25,Q28,Q29 on MAB Q41 on JKB RESISTOR 12559718330ohm 0.5WFUSIBLE RESISTORR69,R71 on MAB #F25598036.8ohm 0.5WFUSIBLE RESISTORR58,R59,R60,R61 on

30、 MAB 13839615RT SQM 0.33ohm 5WCEMENT RESISTORR62,R63,R64,R65 on MAB DIODE 150191691SS133DIODE F50192031N4004DIODED5,D8,D9,D10,D11,D12 on MB F2247701L-608LED (RED)LED1 F5019505RD16EB2 16VZENER DIODED6 on MAB #15019582RD30EB4 30VZENER DIODED7 on MAB #F5019205CP1002 10A/200VBRIDGE DIODED18 on DIB POTEN

31、TIOMETER 13289229RK09L1120 10KBROTARY POTENTIOMETORVR3 on CH1 VR5 on EFB VR3 on CH2 13289235RK09L1120 100KAROTARY POTENTIOMETORVR6 on EFB 13289217RK09L1120 100KBROTARY POTENTIOMETORVR7 on EFB 00122301RK09L1120 250KAROTARY POTENTIOMETORVR4 on CH1 VR4 on CH2 00122290RK09L1120 250KBROTARY POTENTIOMETOR

32、VR2 on CH1 VR2 on CH2 00122289RK09L1120 1MBROTARY POTENTIOMETORVR1 on CH1 VR1 on CH2 00122312RK0971111 10KCROTARY POTENTIOMETORVR5 on CH2 CAPACITOR F36592413300uF 63VELECTOLYTIC CAPACITORC31,C32 on MAB #13639136RT 470uF 35VELECTOLYTIC CAPACITORC36 on MAB F3519501PY17FY472MLO 472/250VCERAMIC CAPACITO

33、RC1 on SWB #13519402RT E C8 472M6 472/250VCERAMIC CAPACITORC127 on DIB 13519628M0 ECKR1H KB5 330PCERAMIC CAPACITOR C7 on CH1 C6 on CH2 13519623M0 ECKR1H151 KB5 150PCERAMIC CAPACITOR C9 on CH1, C16 on CH2 15349367M0 GRM40SL221J50PT 220PF/50VCERAMIC CAPACITOR C7 on CH1 C6 on CH2 01893812GRM40CH121J50P

34、T10CERAMIC CAPACITOR C9 on CH1 C16 on CH2 FUSE,FUSE HOLDER 12559444FUSE 5x20 SB 4A/125VFUSE(100V/117V ONLY) F2559105FUSE 5ST 2.5A/250VFUSE(230V/240V ONLY) 12199550RT FUSE HOLDER F2029601FUSE COVER FH-1 WIRING,CABLE #G3417129WIRING HARNESS 12P L50CN1 (on CH1) to CN1 (on CI1), CN2 (on CH2) to CN5 (onC

35、I2) #G3417130WIRING HARNESS 22P L215CN3 (on CH1) to CN11 (on MAB) #G3417131WIRING HARNESS 32P L180CN4 (on CH2) to CN9 (on MAB) #G3417132WIRING HARNESS 43P L360CN2 (on CH1) to CN8 (on MAB) #G3417133WIRING HARNESS 54P L190CN17 (on JKB) to CN10 (on MAB) SAFETY PRECAUTIONS: The parts marked have safety-

36、related characteristics. Use only listed parts for replacement. SAFETY PRECAUTIONS: Wen ordering any parts listed in thr parts list. please specify the following items in the order sheet. QTYPART NUMBERDESCRIPTIONMODEL NUMBER Ex.1022575241Sharp KeyC-20/50 152247017300Knob (orange)DAC-15D Failure to

37、completely fill the above items with correct number and description will result in delayed or even undelivered replacement. NOTE: The parts marked # are new. (initial parts) CH1:CH1 BOARD / SWB:SWITCH BOARD / CI2:CH2 INPUT BOARD / EFB:EFF BOARD CI1:CH1 INPUT BOARD / MAB:MAIN AMP BOARD / CH2:CH2 INPU

38、T BOARD JKB:JK BOARD / DIB:DI BOARD U NU J J U NU U NU J ! ! U ! J NU U J NU U J NU U J NU ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! J NU J NU U U ! ! ! ! 5 Sep. 2000JC-120UT/JT #G3417134WIRING HARNESS 65P L290CN15 (on JKB) to CN12 (on MAB) #G3417135WIRING HARNESS 75P L350CN8 (on EFB) to CN13 (on MAB) #G34171

39、36WIRING HARNESS 86P L360CN3 (on CH2) to CN16 (on JKB) #G3417137WIRING HARNESS 97P L510CN4 (on EFB) to CN14 (on JKB) #G3417140WIRING HARNESS 10,123P L180CN7 (on MAB) to CN6 (on EFB), W1 (on MAB) to Q7 #G3417139WIRING HARNESS 112P L300CN6 (on MAB) to LED1 #H4027101WIRING HARNESS 13L140 (BRW)W2 (on MA

40、B) to DIB #H4019100CFWIRING HARNESS 14L=150+B6 (GREEN)FG (on MAB) to CHASSIS GND #H4019113CFWIRING HARNESS 15L=100+B6+187NGND (on SWB) to CHASSIS GND #G3467108WIRING HARNESS 16L550+RCA(BLK)CN5 (on EFB) to Reverb OUT #G3467109WIRING HARNESS 17L450+RCA(RED)CN7 (on EFB) to Reverb IN #G3467111WIRING HAR

41、NESS 19L900+205N (RED)W7 (on MAB) to SPEAKER L+ #G3467112WIRING HARNESS 20L900+205N (BLK)W5 (on MAB) to SPEAKER L- #G3467113WIRING HARNESS 21L900+205N (ORG)W9 (on MAB) to SPEAKER R+ #G3467114WIRING HARNESS 22L900+205N (BRW)W6 (on MAB) to SPEAKER R- #G3437651WIRING HARNESS 236P L350+L350 3P+3P SEPARA

42、TE W10-1, W10-2 (on MAB) to Q36, Q37 #G3437650WIRING HARNESS 246P L150+L100 3P+3P SEPARATE W8-1, W8-2 (on MAB) to Q34, Q35 #G3437652WIRING HARNESS 253P L140W3-1 (on MAB) to W3-1 (on DIB) TRANSFORMER #G245713501 100V/117VTRANSFORMER #G245713601 230V/240VTRANSFORMER AC CORD G3497123VCTF 100VAC CORD FO

43、R 100V G349712401 SJT 117VAC CORD FOR 117V G3497125SY010 230VAC CORD FOR 230V 134991114622-001-0886 230VEAC CORD FOR 230VE G3497126FC-305 240VAAC CORD FOR 240V SCREW 17048651VR ACCESSORY WASHER M7 40128923VR ACCESSORY NUT M7 17048631VR ACCESSORY WASHER M9 17048630VR ACCESSORY NUT M9 40011889EXT TOOT

44、H WASHER M4 ZC 40011767FLANGE NUT M4 ZC 40010345BINDING MACHINE SCREW 4x10 BZC #40230023SPRING WASHER M4 ZC 40012989PAN MACHINE SCREW W/SW+PW M3x20 BZC 40011756FLANGE NUT M3 ZC #40129889NUT M4 ZC *LED ACCESSORY NUT M8 *LED ACCESSORY WASHER M8 40012945PAN MACHINE SCREW W/SW+PW M3x6 BZC (117V ONLY) 40

45、010423BINDING MACHINE SCREW W/INT TOOTH WASHER M3x8 BZC #G2157504STANDOFF M3 L70 40010323BINDING MACHINE SCREW 4x6 BZC #40012967PAN MACHINE SCREW W/SW+PW M3x10 BZC 40010212BINDING MACHINE SCREW 3x15 ZC 40011801SPRING WASHER M3 ZC 2215075600 JACK NUT 170550408/32 LOCKING NUT (KEP NUT) 40011767FLANGE

46、NUT M4 ZC 40010601ORIGINAL TRUSS MACHINE SCREW 5x35 BZC 40232001SCREW #10-32x11/4 (INCH) 40010689TRUSS TAPPING A 4x25 BZC 17055105SCREW #10-32x1 OVAL HEAD BZC PHILLIPS MACHINE (SCREW00040) TE910013SCREW M5x30 OVAL MACHINE BC 17055071SCREW #10 x1/2 INCH PHP SHEFT METAL ZU 17055108SCREW #8x3/4 TRUSS HEAD WOOD (SCREW00007) PACKING 02232712PACKING CASE 02232723UPPER PAD 02232734LOWER PAD MISCELLANEOUS #H2369411SPACER SUPPORTS LCBS-25 for JKB #F3459104GROUNDING TERMINAL JH